Two-Phase inclusions and rutile needles in rock crystal from Brazil
«Red fox agate» from Patagonia, Argentina
Inclusions of hematite in feldspar (sunstone), India
Natural etching structure on a crystal face of diamond (trigons), polarised light
Inclusions of gilalite aggregates in rock crystal from Brazil
Stress fissure («sun spangle») in baltic amber
Agate from Reichweiler, Germany
Dumortierite in rock crystal, Brazil, polarised light
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